/**** 
* Classes
****/ 
//<Write imports for supported plugins here>
// Bird class representing the player-controlled bird
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityY = 0;
	self.gravity = 0.3;
	self.lift = -15;
	self.update = function () {
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		if (self.y < 0) {
			self.y = 0;
			self.velocityY = 0;
		} else if (self.y > 2732) {
			self.y = 2732;
			self.velocityY = 0;
		}
	};
	self.flap = function () {
		self.velocityY = self.lift;
	};
});
// Obstacle class representing the obstacles
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -5;
	self.update = function () {
		self.x += self.speed;
		// Remove obstacle if it goes off-screen
		if (self.x < -100) {
			self.destroy();
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xD2B48C // Light brown background
});

/**** 
* Game Code
****/ 
//<Assets used in the game will automatically appear here>
var bird = game.addChild(new Bird());
bird.x = 2048 / 2;
bird.y = 2732 / 2;
var obstacles = [];
var obstacleInterval = 100; // Interval for obstacle generation
var ticks = 0;
game.down = function (x, y, obj) {
	bird.flap();
	LK.getSound('Tik').play();
};
var score = 0;
var scoreTxt = new Text2('0', {
	size: 150,
	fill: 0xFFFFFF
});
LK.gui.top.addChild(scoreTxt);
game.update = function () {
	bird.update();
	// Generate obstacles at intervals
	if (ticks % obstacleInterval === 0) {
		var gap = -1200; // Gap between top and bottom obstacles
		var topObstacleHeight = Math.random() * (2732 - gap);
		var bottomObstacleHeight = 2732 - topObstacleHeight - gap;
		var topObstacle = new Obstacle();
		topObstacle.x = 2048;
		topObstacle.y = 0; // Connect the top obstacle to the top of the screen
		topObstacle.height = topObstacleHeight; // Set the height of the top obstacle
		obstacles.push(topObstacle);
		game.addChild(topObstacle);
		var bottomObstacle = new Obstacle();
		bottomObstacle.x = 2048;
		bottomObstacle.y = 2732; // Connect the bottom obstacle to the bottom of the screen
		bottomObstacle.height = bottomObstacleHeight; // Set the height of the bottom obstacle
		obstacles.push(bottomObstacle);
		game.addChild(bottomObstacle);
	}
	// Update obstacles and check for collisions
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.update();
		if (bird.intersects(obstacle) || bird.y <= 0 || bird.y >= 2732) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver(score);
			return;
		}
		if (obstacle.x < bird.x && !obstacle.passed && obstacle.y == 0) {
			obstacle.passed = true;
			score += 1;
			scoreTxt.setText(score.toString());
		}
		if (obstacle.x < -100) {
			obstacles.splice(i, 1);
		}
	}
	ticks++;
};